Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / net / ethernet / ibm / emac / phy.h

diff --git a/kernel/drivers/net/ethernet/ibm/emac/phy.h b/kernel/drivers/net/ethernet/ibm/emac/phy.h
new file mode 100644 (file)
index 0000000..d7e41ec
--- /dev/null
+++ b/kernel/drivers/net/ethernet/ibm/emac/phy.h
@@ -0,0 +1,87 @@
+/*
+ * drivers/net/ethernet/ibm/emac/phy.h
+ *
+ * Driver for PowerPC 4xx on-chip ethernet controller, PHY support
+ *
+ * Copyright 2007 Benjamin Herrenschmidt, IBM Corp.
+ *                <benh@kernel.crashing.org>
+ *
+ * Based on the arch/ppc version of the driver:
+ *
+ * Benjamin Herrenschmidt <benh@kernel.crashing.org>
+ * February 2003
+ *
+ * Minor additions by Eugene Surovegin <ebs@ebshome.net>, 2004
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ *
+ * This file basically duplicates sungem_phy.{c,h} with different PHYs
+ * supported. I'm looking into merging that in a single mii layer more
+ * flexible than mii.c
+ */
+
+#ifndef __IBM_NEWEMAC_PHY_H
+#define __IBM_NEWEMAC_PHY_H
+
+struct mii_phy;
+
+/* Operations supported by any kind of PHY */
+struct mii_phy_ops {
+       int (*init) (struct mii_phy * phy);
+       int (*suspend) (struct mii_phy * phy, int wol_options);
+       int (*setup_aneg) (struct mii_phy * phy, u32 advertise);
+       int (*setup_forced) (struct mii_phy * phy, int speed, int fd);
+       int (*poll_link) (struct mii_phy * phy);
+       int (*read_link) (struct mii_phy * phy);
+};
+
+/* Structure used to statically define an mii/gii based PHY */
+struct mii_phy_def {
+       u32 phy_id;             /* Concatenated ID1 << 16 | ID2 */
+       u32 phy_id_mask;        /* Significant bits */
+       u32 features;           /* Ethtool SUPPORTED_* defines or
+                                  0 for autodetect */
+       int magic_aneg;         /* Autoneg does all speed test for us */
+       const char *name;
+       const struct mii_phy_ops *ops;
+};
+
+/* An instance of a PHY, partially borrowed from mii_if_info */
+struct mii_phy {
+       struct mii_phy_def *def;
+       u32 advertising;        /* Ethtool ADVERTISED_* defines */
+       u32 features;           /* Copied from mii_phy_def.features
+                                  or determined automaticaly */
+       int address;            /* PHY address */
+       int mode;               /* PHY mode */
+       int gpcs_address;       /* GPCS PHY address */
+
+       /* 1: autoneg enabled, 0: disabled */
+       int autoneg;
+
+       /* forced speed & duplex (no autoneg)
+        * partner speed & duplex & pause (autoneg)
+        */
+       int speed;
+       int duplex;
+       int pause;
+       int asym_pause;
+
+       /* Provided by host chip */
+       struct net_device *dev;
+       int (*mdio_read) (struct net_device * dev, int addr, int reg);
+       void (*mdio_write) (struct net_device * dev, int addr, int reg,
+                           int val);
+};
+
+/* Pass in a struct mii_phy with dev, mdio_read and mdio_write
+ * filled, the remaining fields will be filled on return
+ */
+int emac_mii_phy_probe(struct mii_phy *phy, int address);
+int emac_mii_reset_phy(struct mii_phy *phy);
+int emac_mii_reset_gpcs(struct mii_phy *phy);
+
+#endif /* __IBM_NEWEMAC_PHY_H */